Information Disclosure Vulnerability in SiYuan by SiYuan Tech
CVE-2026-72792

6.9MEDIUM

Key Information:

Vendor

Siyuan-note

Status
Siyuan
Vendor
CVE Published:
12 August 2026

What is CVE-2026-72792?

The SiYuan application prior to version 3.7.4 has an information disclosure vulnerability affecting the /api/tag/getTag endpoint. This flaw allows unauthenticated users to access sensitive tag labels and occurrence counts from documents that should be password-protected. By exploiting this vulnerability, attackers can enumerate vocabulary and internal terminology from secured documents, posing a significant risk to data integrity and confidentiality.

Affected Version(s)

siyuan 0 < 3.7.4

siyuan 3.7.4

References

https://github.com/siyuan-note/siyuan/security/advisories...
vendor-advisory
https://www.vulncheck.com/advisories/siyuan-before-inform...
third-party-advisory

CVSS V4

Score:
6.9
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Shirshakhtml
.